Oil-purifying mechanism



W. W. NUGENT OIL PURIFYING MECHANISM 4Original Filed Feb. 23, 1918 May5, 1925.

2 Sheets-Sheet l May 5', 1925.

, W. W. NUGENT OIL PURIFYING MECHANISM Original Filed Feb. 25, 1918 2Sheets-Sheet Y2 To all whom t may concern:

Patented May 5, 1925i.

y "UNITED-STATES l 1,536,912 PATENT or-Fica WILLIAMW. NUGENT, orcHIcAGo, ILIQIIvoIs.A

OIL-PURIFYING MEcIIANIsM. v

Original application led February, 1918, Serial No.l 218,343. Dividedand this application led Be it known that I, VILLIAMKlVpNUGENfr, acitizen of the United States, residing at Chicago,1in the county` ofCook andv State of Illinois, have invented certain new andy usefulImprovements in' Oil-Purifying Mechanism, of which the following is aspecification. y v

yMy inventionrelates to apparatus for removing impurities fromlubricating oil, and

the like, and has for one of its objectsy the. provision of simpleandefhcient means for.

automatically separation-gy water, dirt and t other foreign materialfrom lubricating ois-ls,-

and the like.

A further objectisthe provision ofa device of the character mentionedwhich has its parts easily accessible.

Other objects will appear hereinafter.

An embodiment of my invention is illus. trated in the accompanyingdrawings, forming a` partL of this specification, and yin which'-` f YFig 1 is a front view of an oil purifying device embodying my inventionand having portions of the casing removed to showinternal parts;

Fig. 2 is an enlarged section taken on line i `2---2 of Fig. 1; and

Fig. 3 is an enlargedfragmental section taken on line 3-3 of Fig. 2. r

Referring more particularly tothe draw ings, I-have indicated ahousinghaving ya horizontal partition 11 in its upper por- .tion and` a similarpartition 12 *above the partition 11.

Chamber 13 is a purified oil receptacle and housing for the filteredelements. The intermediate section 14 is a chamber forwashingv and,separating water from oil, and thev like, and'theupper chamber 151s forsepa-l rating dirt and other solid materialsk from the oil. f A door 16pivoted as at 17 forms a part of the upper wall of housing and isprovid-y .One or more filling openings are provided in chamber 15 withshort pipes 1S: therein-A reaching downwardly some distance intosaidchamber; .y

Extending longitudinally of said chamber These partitions divide thecasing 10 into chambers 13,r 14 andA 15.v

y November 29,k 1,920. Serial No. 426,970.

15 on the bottom of the latter are .two paral` lel partitions 19 and 19between which is a filtering material 20,` such as cotton waste or otherfibrous materiahV such material sub? lstantially filling the spacebetween said partitions. The partitions 19, 19 donot reach' the topofchamber y15 and at the top of partition 19 is hinged a door 21 restingon par-` tition 19 vand which covers the material 2O and chamberv15"between partition 19 'and its adj acent'wall of the casing. In thebottom of chamber 15 are a plurality of openings 22 which carry oil. andwater coming throughl the partitions' down out of chamber 15 intochamber 14. y

In each of the openings 22 is a pipe 23 which extends downwardly 'belowthe roil leveliny chamber 14. The Oil levelof chamber 14 .is determinedby the-top of a well 24 in chamber 14, and a discharge pipe 2S.`

or not there is oil passing over with the water. i

1n the chamber 14 yis a partition 27 which extends the full length ofsuch chamber and has rits upper edge well above the oil level of suchchamber `and itsv lower edge spaced above the bottomofsaid chamber.partition 27 is provided'to prevent oil from passing overthe top intowell 24,*since water is heavier than oil, the oil will remain on topandthe water pass under partition 27 and over-into well 24 and run awaythrough pipe 25. n ,y

When `the oil has raised in chamber y14 untilitslevel is `higher thanthe top of a discharge pipe 28 such ,oil kpasses down through the'pipe28from chamber 14 intov chamber 13. A heating element`29 is indicated in`chamber 14 to warm up the oil and water so thatthey may be more easilyseparated.V `Steam pipes are indicated, but an'y other form ofheaterlmay be used when so desired. Chamber 15 is preferablyconsiderably `narrower than chamber 14 thereby exposing a part yof theupper wall of said chamber 14. This portion ofthe upper wall of chamber.14 is provided with a door 30 lhinged as at 31 so that upon openingsaid door the inte-r The f lill rior of the chamber 14 may be inspected.The door 30 may be ay single door extending substantially the fulllength of chamber 14 or made in any other desirable manner.

Discharge pipe 28 reaches down into chamber 13 and is provided with ahorizontally disposed header pipe 32 and the latter preferably extendsthe full length of chamber 13. The ends of pipe 32 may be sea-led bycaps 33 or in any other desirable manner. By providing caps they may beeasily removed for cleaning out said pipe 32 should it become dirty.Positioned along the header pipe 32 are a plurality of valves 34. Ipreferably provide one ofthe valves for each of' the, filter elements35' of the de` vice, one filter element being positioned directly undereach valve 34 to receive its supply of' oil` therefrom. TheA filterelements shown are substantially alike and each coinprises frameportions 3G and 37v secured together by screws 38 and clamping the topedge of a filter bag 39` therebetween. The filtering elements may beformed' in any desirable manner and arranged as desired. At

o ne end of frame part 36L l provide an arm 42-'Which reaches upwardlyand has a flat toe portion 43 Which restsY on an angle bar rack 44, Theangle bar 44 preferably extends the full length of chamber 3 so that oneend of each ofthe filter elements can be supported therefrom. The otherend of eachof the filter f'an'ies is provided with an opening 45 inWhich is fitted a downwardly curved pipe 45 forming a spout throughWhich the oil will flow before it can fl'oiv over the top of the filterframe. Eachspout 45 alsol supports one end ofthe filter frame and restson an edge of a trough 46 which is secured to the innerivall of casing1G and preferably at a lower level than the angle bar ledge 44. Thetrough 46 also eXtends'tl'ie full length of chamber 13' and has. adischarge pipe 47 extending out of the casing so that any oil which maypass from the filter frames into said trough may passy out ofv thecasing and not overflow into the clean oil at the bottom ofchainber 13.Each filter element is there` fore mounted independently of the othersand is separately removable so that any one filter element can be takenout of the device Without interfering with the operation of any of theother filtering elements.

At the front side of casing 10 l provide an openingleading into chamber13 and covering' said opening is a door 43 hinged along its lower sideas at 49 to the casing. The door 48 preferably extends substantially thefull length of the casing so as to expose all of the filter elementsWhen it is open. An illuminating device, such as an electric lamp 50,may be provided in the chamber to facilitate examining the filterelements and,v

the other interior parts of said chamber.

I have indicated openings 51, 527 53 and 54 in anV end of casing 10.Opening 51 is provided with its lower edge slightly lower than the topof partitions 19, 19. The partitions 19, 19 are preferably shorter thanthe chamber 15 aty one end of the latter and provided with a crosspartition 51 which provides a chamber 51 adjacent the open` ing 51.lilith this arrangement should the filtering material 2O become cloggedthe oil would overflow partition 51 into chamber 51 and out throughopening 51 so as to prevent the dirty oil from passing down throughopening into chamber 14.

Opening 53 provides an overflow for chamber 13 so that When the filteredoil sub` -stantially reaches the lower ends of filter bags 39 suchfiltered oil willy pass out of the casing to a suitable receptacle, notshown.

Opening 52 which may normally be closed provides a cleaning opening forchamber 14. Sometimes sediment settles iii the bottom of chamber 14 andby providing opening 52 Which can be opened, cleaning of such sedimentout of chamber 14 will be easy. A suitable cleaning tool, not shown,ca-n be inerted either through opening 52 or through door to facilitatethe cleaning operation of said chamber. During such operation thedischarge pipe 23, well 24' or baille plate 2T will not interfere withsuch cleaning. operations.

Opening 54 may be connected to any form of apparatus, not shown, Wherethe purified oil is desired, and should such apparatus not use the oilas fast as it is cleaned, the superfluous oil Would run out throughopeningA 53, as above indicated.

Door 43 is preferably hinged along its bottom edge so that it Will tendto remain open when once opened so as not to interfere with removing thefilter elements. It will be seen from this arrangement that thefiltering elements may be used until overflow is indicated at thedischarge pipe 4i' at one end of the purifying structure. By observingthrough door 43 the element which is overflowing may be discovered andremoved for cleaning because the overflow indicates that the dirt orsediment acc-uii'iulated in such elei'nent has become too great topermit of normal filtering. If it is desired the valve 34 at the top ofsuch filter element may be closed and the filter element not cleaneduntil a later time. with the operation of the other filter bags. It willsimply reduce the total filtering capacity of the device to the extentof the oil filtered' by such bag.

The door opening is preferably of such a height to permit the freeremoval of the filter element filled with oil without spilling thclatter into the lower portion of the housing 10. lith my improvedconstruction this may readily be done by lifting the curved spout fromits seat on the upper This will not interfere since the member 42extends uphardlyv considerable distance abovel the filter .elen mentproper and the spout 45 is in the form of a hook fitting over-the edgeof trough 4G that the filter elements will be held by grav ity 'inyoperative positions. The foot perf tions 43 mavpbe formed flat on theirsupporting surfaces so that-suchflat surfaces resting on ledge 44willfurther facilitate holding the filter bags in operative posit-ions.

y Inoperation oil containing impurities is fed into chamber 15 throughpipe i8 and' the solidmaterial held in said chamber l5 `with the oil andother liquids passing ont through filter material 2O and down 'throughpipe 23'into chamber i4; Since water is heavier than oil the water willremain at the bottomof chambe'r`14 raising .theoil up until it runs overintodischargeV pipe 28 and thence downwardly to the filtering elements`as above mentioned;` As thewater accumulates in'chamber 14 would raiseup and run y fi over into well 24 and out through 4pipe 25,

as already mentioned.-

vThis yapplication is a division of applicants .copending application,Serial No.`

218,643, filed February 23, 1918, on oil purifying mechanism, and noclaim is made herein tothe specific filteringy elements described andclaimed in said copending application. v

y Obviously those skilled in'the art may make variouschanges in thedetails and ar-v rangement of parts without departing from the spiritand scope of my invention as defined by the claims hereto appended, andl therefore wish it to be understoodtha-tI do not desire toy berestricted `to the exact construction herein disclosed.

I claimz-v 1. A casing enclosing a reservoir; a water separating chamberand" a dirt separating chamberwith the latterelevatedabove the otherchamber;.two `spaced screens having their top edges spaced'fromthe topof the reservoir and dividing the elevated dirt separating chamber into'two compartments, there being a filling opening in one of saidcompartments and a. discharge opening lead# ing from the other, of saidcompartments downwardly' into#` the water Y separating chamber andfiltering 'material substantiah .ly filling the space between'saidjscreens.

2.An oil purifying apparatus comprising a casing; horizontal partitions'dividii'ig the interior of said casing into chambers at differentelevations; two spaced foraminous partitionsl extending upwardly fromthe bottom of the top chamber; a door covering the space between said.foraminous partitions; and porous material substantially filling thespace between the yforaminous partitions, there being a dischargeopening in the bottom of the top chamber at one side of said foraminouspartitions and leading into the next lower chamber.A

3. In combination. casing; horizontal partitions dividing` the interiorof the casing into a top dirt separating, an intermedil ate waterseparating chamber and a lower reservoir chamber; rtwo spaced perforatedpartitions extending upwardly from the bot- 4tom of the dirt separating`chamber dividing thelatter into two compartments; door hinged to one ofsaid perforated partitions and extending horizontally across the spacebetween the partitions in the top; chamber, there being a feed'op'eiiingfor the top compartment and a discharge opening between the top chamberand the waterl separating chamber; and fibrous material in the space`between the perforated partitions.

4. @il purifying apparatus comprisinga casing; a horizontal partitiondividing the interior of the casing into an upper dirt separatingchamber and a lower water separating chamber; dirt and oil. .separatingmeans in the upper dirt lseparating chamber; a

`partition extending downwardly 'from the ltop of' the water separatingchamber with its lower edge spaced above the `bottom of saidwaterseparating chamber and dividing the Alatter into two compartments; apipe extending upwardly from the bottom of the f yrca-ter separating;chamber for conducting oil from'one of said compartments; and' overflowmeans for conducting water from the other of said. compartments.r

5,. Oil purifying apparatus comprising a casing; ahorizontal partitiondividing the interior. ofthe casing into an upper dirt separatingchamberand aV lower chamber and water separating chamber; dirt and oilseparating means in the dirt separating.

chamber; a partition extending downwardly from the top of the waterseparating chamber with itslower edge spaced above the bottom of saidwater separating chamber and dividing'the latter into two compartments apipe extending upwardly from the bottoni of said water separating'chamber with its receiving end opening into the upper yportion of one ofsaid compartments; and a discharge pipe having its receiving end openingin the upper portion of the other compartment at a height lower than theopening of the first-mentioned pipe.

6. An oil purifying apparatus comprising el (l a casing enclosing anupper' dirt separating chamber and a lower water separating` chamber; apartition extending down from the top of the water separating chamber tonear the bottom of the latter dividing said water separating chamberinto two compartments; an oil discharge pipe extending upwardly from thebottom of the separating chamber with its receiving end opening near thetop of and into one of said compartments; a water discharge pipe openingnear the top et and in the other of said crmipartments, the opening otthe water discharge pipe being below the opening ot' the oil dischargepipe; and pipes leading downwardly from the dirt separating chamber withtheir lower discharge ends below the level ot the upper opening in theoil discharge pipe.

7. Oil ltering apparatus comprising a tank having a door opening in oneot its vert-ical sides; a ledge above the door cpening at one side ofthe tank; a trough parallel to the ledge and at a height intermediatethe top and bottom of the door;

a plurality of spaced tilter bag frames between the ledge and trough; anarm at one end of each of said frames extending upwardly trom the latterand' resting on said ledge; and a curved pipe support attached to theother end of each of the lilter bag frames with its open end directeddownwardly toward the bottom of said trough.

8. Oil purifying' apparatus comprising a casing, horizontal partitionsin the casing dividing the interior of the latter into an upper dirtseparating chamber, an intermediate water separating chamber and a lowerreservoir chambenthe dirt separating chamber being narrower than thewater separating chamber and located on the rear side of the casing toafford a horizontal edge above the water separating chamber on the frontside of the casing, a horizontal door for the top of the dirtseparatingchamber and adapted to be opened upwardly, a horizontal doorfor the ledge portion of the water separating chamber andV also adaptedto be opened upwardn ly, and an upright door for an opening in the frontside of the reservoir chamber.

9; Oil purifying apparatus comprising a casing having a top dirtseparating chamber, an intermediate water separating chamber and a lowerreservoir chamber, the top compartment beingnarrow to alford a ledgeabove a portion of the water separating chamber, a door for the top dirtseparating chamber and when open permitting large quantities ot oil' tobe introduced for purification, a door for the ledge portion of: thewater separating chamber atfording a support when closed andfacilitating' cleaning of the water separating chamber when open,liltering mechanism in the reservoir chamber, and a door lor thereservoir chamber which when open permits inspection of the filteringmechanism and attention thereto.

l0. Oil purifying apparatus comprising a casing divided into threesuperposed com` partments, the top compartment being narrow to afford aledge for the upper front portion ot the intermediate compartment, saidintermediate compartment extending under the top compartment and locatedon top ot the lower compartment, a door for covering a. top opening inthe top com- 'iartment, an additional door for covering an upper openingin the ledge portion o1 the intermediate compartn'ient, and an uprightdoor tor an opening in the iront side of the lower compartment.

ll. In combination, a casing enclosing reseri'oir chamber, a pluralityof lilters, means 'for supporting lilters detachably Yich being` adaptedto be removed by manual lit'ting from said supporting' means through anopening` in the casing', said supporting means being adapted to supportthe ilers in a straight line series in horizontal alinementwith theirtops all substantially at the same level, `and a door in the casing forsaid opening with the top edge ot the opening above the tops of theElters and the bottom edge of the opening below the tops of the filters,the filters being thereby adapted to be inspected at their tops andsides and individually adapted to be removed from the casing chamber andreplaced by another lilter individually.

l2. In combination, a casing enclosing a chamber having a door openingtherein; a horizontal ledge disposed above the door opening in thecasing; a ledge on the inner wall of the casing opposite the door andsubstantially parallel with the first-mentioned ledge; a plurality offilter trames supported at their ends on said ledges; and lilter bagssecured to the frames.

13. In combination, a casing enclosing a chamber having a door openingtherein; a horizontal ledge disposed above the door opening in thecasing; a ledoe on the inner wall oi the casing opposite the door andsubstantially parallel with the Vnist-mentioned ledge and lower than thelatter; a plurality ot horizontal filter frames disposed atsubstantially the height ot the second-mentioned ledge; arms on thefilter frames eX- tending upwardly and resting on the lirstmentionedledge; supporting means on the lilter trames resting on thesecond-mentioned ledge; and ilter bags secured to the ilter frames.

14.111 combination, a casing enclosing a chamber; two substantiallyparallel ledges on the inner walls of the casing; filter frames disposededge to edge in said chamledges, one of the supports ofeach frame beinghollow and providing a discharging means for the frame below the top ofthe latter; the centers of gravityof theV filter frames'being below thepoints of support of said. frames on said ledges; and filter bagssecured to the filter frames.'

l. In combination; a casing enclosing an oil reservoir chamber, saidcasing having a horizontal longitudinal opening in its upper verticalportion, two lsubstantially' parallel ledges from either walls ofthecasifng, a

seriesof filter elements `supported on said ledges in horizontalalinement parallel to the opening in said casing in position to haveeach inspected at thetops and sidesfthereof through such opening, andsupporting mechanismen each filteringelement for engagin said ledges andadapting each filter element to be individually removed from such seriesthrough said opening and replaced by ans other filter element withoutdisturbing the other filter elements of the series.

16. In combination, a casing enclosing a chamber; a substantiallyhorizontal ledge on the inner wall ofthe casing; a. trough on the innerwall of the casing substantially parallel with said ledge; a filterframe ldisposed between said ledge and trough; a pipe secured to theframe and resting on said trough providing a communication between theinterior of the frame and the trough an arm on theframe resting on saidf ledge; "and a filter bag secured to the frame.

17. In combination; a casing enclosing a ychamber; a substantiallyhorizontal `ledge on the inner wall of the casing; a trough on theinner4 wall of the casing substantially parallel with said ledge butlower Vthan the latter; a filter element disposed between said ledge andtrough at substantially the height of the latter; a pipe secured to theframe and resting on said vtrough providing a lsupport for one end ofthe frame and a coin-` niunication between the interiorl of such frameand the trough; and an arm onthe frame extending upwardly therefrom witha fiat portion resting on said ledge facilitat- .ing holding the filterelement in horizontal position.

18. Incombination, ya casing enclosing a chamber; a substantiallyhorizontalledge on the inner wall of the casing ;a trough lon the innerwall of the casing and disposed substantially parallel with said ledge;.a filter element disposed between theledge and trough; a pipe extending:from the interior of said filterfelementand resting on the trough withits discharge end adapted to discharge fluids into said trough; 'and anarm on the filter element resting on the ledge, said arm and saidpipebeing the sole. supports of the filter element. l l

19, In combination, a casing enclosing aV able through. said chamber, aplurality of substantially hori` zontal filter frames individuallylmountedf and` each removable from Athe ,easingr by manually lifting thesaine through an opening in the casing, a filter bag secured kto eachof'said frames with the interiors of said bags. in communication withthe'interiors of said frames; overflow mechanism for receiving materialfrom the lter bagswhen the latter tend to overflow after becomingclogged with material filtered from the liquid; and means individual toeach filter frame for directing such overflowing liquid totheoverflowing mechanism; each of said filter frames with its filter bagbeing removopening for cleaning and` renewal. y, l

.` 20'. In combination; a casing enclosing a chamber, a plurality offilter frames eachl having an overflow discharge spout, over'- flowmechanism adapted to receive each of'^ the discharge spouts of saidfilter frames` a filter bag secured to each of the filter frames;` andmeans for supporting the kfilter frames vvin said chamber forindividual. manual removal therefrom independently of the remainingfilter frames. n f

2l. Iny filtering apparatus; the combination with `a casing having anopening in an upright side thereof.. of a filter bag, a frame forsupportingsaid bag in position for removalV 'from said casing throughsaid lateral opening. said opening` being of vsufficient size to permitmanually holding said frame to prevent oilspillingfrom said bag whileing' elements each compri sing aA filtering bag and a metal supportingframe, means for` removably supporting said frames along thelongitudinal upper portion ofsaid tank with the, bagsy in suspension andarranged' in spaced-apart relation in series; overfiow mechanismcomprising a spout kon each of said frames removably connected to anoverflow passageway, and a longitudinal door extending along the wholetank for an opening in a vertical side of the tanlr` permittingIinspection of the individual Vfiltering elements and permittingremoval. of `any one of them in condition `of overflow through suchopening and `from the tank lfor renewal without spilling the unfilteredoil in such filtering element into the tank during-such removal; f

23. In filtering apparatus, the combination with a tank for containingfiltered oil, of a plurality of removable filtering elements eachcomprising a liltering bag and a supporting frame, means comprising aledge above an opening in one of the vertical walls of said tank forsupporting said filtering elements independently of each other with thebags in suspension and arranged in spaced apart relation with the mouthsot' said bags at said supporting frames visible through said opening todetermine whether any bag requires renewal, and overflow mechanism,coinprisiiu;` a spout on each of said frames removably connected to anoverflow passageway, the latter being individually adapted to be liftedofl1 said supporting means and removed horizontally through said.opening with its bag :full of oil and the upper surface of the oilremaining in a 'substantially horizontal plane to prevent spilling` ofunfiltered oil into said tank.

243. In combination` a casing having a filter removing opening in one ofits vertical sides, a plurality of filter elements each comprising a bagand a frame at the mouth thereof, means for removably supporting saidfilter elements Jfor individual removal, said means comprising asupporting ledge on an inner wall of the casing above said opening, andoverflow mechanism comprising a spout on Ieach of said frames removablyconnected to an overflow passageway.

25. In combination, a casing having a filter viewing opening in one ofits vertical walls, a ledge on an inner wall of said casing above saidopening, a removable` filter element comprising a frame and an arm ci:-tending therefrom to rest on said ledge and also comprising a filter bagsecured to said frame, and overflow mechanism comprising an overflowspout on said frame adapted to be removably connected to an overflowpassageway.

26. Filtering apparatus comprising a reservoir chamber, a plurality ofremovable liltering elements cach comprising a filtering bag and asupporting frame, means Jfor supporting said filtering elements forindividual removal and replacement, and overflow mechanism comprising aspout connected rigidly to each of said supporting frames removablyconnected to an overflow pas sageway.

2T. .Filtering apparatus comprising a casing having a reservoir chamber,a removable filter element comprising a 'frame and a filter bag`suspended therefrom, means for detachably supporting one end of saidframe in said chamber, an overflow passageway connected to said casing,and an overflow spout rigidly connected to the other end of said frameadapted to rest detachably on said overflow passageway for supportthereby when the filtering bag is in filtering position.

In testimony whereof I have signed my name to this specification on this26th day ot' November, A. D. 1920.

WILLIAM W. NUGENT.

